Vitamin C is one of skincare's best-studied brighteners and antioxidants. Pure vitamin C (ascorbic acid) is unstable: it breaks down quickly in light and air and can sting. Ethyl ascorbic acid (also written 3-O-ethyl ascorbic acid) is a stable form of vitamin C that stays effective in the formula and is gentler on skin.
What vitamin C does for skin
- Brightens dullness. It helps skin look more radiant and even.
- Fades the look of dark spots. Vitamin C slows excess melanin, so tanning and marks look lighter over time.
- Protects. As an antioxidant, it helps defend skin against pollution and UV-driven damage (alongside sunscreen, not instead of it).
- Supports collagen. Vitamin C plays a role in the skin's own collagen production.
Who vitamin C suits
Vitamin C suits anyone with dullness, tanning or uneven tone, which covers most skin in Indian cities with strong sun and pollution. Stable forms like ethyl ascorbic acid are a good choice for people whose skin reacts to pure vitamin C serums.
How to use vitamin C
It is best used in the morning, under sunscreen, where its antioxidant benefit counts most. Consistent daily use gives visible brightening in about four to eight weeks.
Where you'll find vitamin C at GLOCERY
- Re:fresh Brightening Gel Facewash: ethyl ascorbic acid at 1%, with alpha arbutin and niacinamide, for a brightening cleanse.
- Dusk to Dawn Tinted Eye Cream: 3-O-ethyl ascorbic acid at 0.5%, to brighten the look of dark circles.
Vitamin C FAQs
Why does my vitamin C serum turn orange?
Pure ascorbic acid oxidizes in air and light. Stable forms such as ethyl ascorbic acid resist this.
Can I use vitamin C with niacinamide?
Yes. Modern formulas use them together, and both are in Re:fresh.
Can I use vitamin C at night?
Yes, though morning use makes the most of its antioxidant protection.

